Linear Technology DC2283A Demo Manual

Polyphase Single 160A Output Synchronous Buck
Description
Demonstration circuit 2283A is a high efficiency, high
density, single-output Buck converter with 7V to 14V input
range. The output voltage is adjustable from 0.5V to 1.5V,
and can supply up to 160A of load current with a 1V output.
The demo board offers the option to be configured as a
dual-output converter, contact factory for details. V
can supply a 40A maximum load current and V
supply a 120A maximum load current. The demo board
features the LTC3884, a dual output poly phase step-down
controller for ultra-low DCR sensing with digital power
system management. Please see
for more detailed information.
DC2283A powers up to default settings and produces power
based on configuration resistors or with its non-volatile
memory without the need for any serial bus communication.
This allows easy evaluation of the DC/DC converter. To fully
performance summary
PARAMETER
Input Voltage Range
Output Voltage, V
OUT1
Maximum Output Current, I
Typical Efficiency
Peak Efficiency
Default Switching Frequency
Note 1: Both V and V
OUT0
Note 2: For V < 0.75V, f
OUT1
Arrow.com.
Downloaded from
Converter with Power System Management
LTC 3884
®
= I + I
OUT OUT0 OUT1
terminals need to be used when drawing > 100A output current.
OUT1
needs to be reduced due to t
SW
DEMO MANUAL DC2283A
explore the extensive power system management features
of the part, download the GUI software LTpowerPlay™
on-to your PC and use LTC's I2C/SMBus/PMBus dongle
DC1613A to connect to the board. LTpowerPlay allows
the user to reconfigure the part on the fly and store the
configuration in EEPROM, view telemetry of voltage,
OUT0
can current, temperature and fault status.
OUT1
GUI Download
The software can be downloaded from:
data sheet
http://www.linear.com/ltpowerplay
For more details and instructions of LTpowerPlay, please
refer to LTpowerPlay GUI for LTC3884 demo manual.
Design files for this circuit board are available at
http://www.linear.com/demo/DC2283A
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
Specifications are at T = 25°C
A
CONDITIONS
V = 7V to 14V, Single Output, I
IN
V = 7V to 14V, Single Output, V
IN
V = 12V, Single Output, V
IN OUT1
V = 12V, Single Output, V
IN OUT1
limitation.
ON(MIN)
LTC3884EUK
(1)
= 0A to 160A
OUT
(2)
= 0.5V to 1.5V
OUT1
= 1.0V, 160A Load
= 1.0V, 90A Load
VALUE
7V to 14V
Default: 1V
160A
89.6%
90.7%
425kHz
dc2283af
1